<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>databaseAccess</title>
</head>
<body>
<div id="status"></div>
<script>
console.log(openDatabase)
        let res = '';
        try{
            if(openDatabase) {
                res = 'openDatabase'
            }
        }catch(e){
            console.log('err:'+e);
            res = 'openDatabase is undefined';
        }
        function getDataResult() {
            return res;
        }
    </script>
</body>
</html>